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130 lines
4.5 KiB
C++
130 lines
4.5 KiB
C++
/// @file
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/// @brief QF/C++ port to uC/OS-II (V2.92) kernel, all supported compilers
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/// @cond
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///***************************************************************************
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/// Last updated for version 5.8.2
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/// Last updated on 2017-02-02
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///
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/// Q u a n t u m L e a P s
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/// ---------------------------
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/// innovating embedded systems
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///
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/// Copyright (C) Quantum Leaps, LLC. All rights reserved.
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///
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/// This program is open source software: you can redistribute it and/or
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/// modify it under the terms of the GNU General Public License as published
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/// by the Free Software Foundation, either version 3 of the License, or
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/// (at your option) any later version.
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///
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/// Alternatively, this program may be distributed and modified under the
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/// terms of Quantum Leaps commercial licenses, which expressly supersede
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/// the GNU General Public License and are specifically designed for
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/// licensees interested in retaining the proprietary status of their code.
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///
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/// This program is distributed in the hope that it will be useful,
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/// but WITHOUT ANY WARRANTY; without even the implied warranty of
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/// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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/// GNU General Public License for more details.
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///
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/// You should have received a copy of the GNU General Public License
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/// along with this program. If not, see <http://www.gnu.org/licenses/>.
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///
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/// Contact information:
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/// https://state-machine.com
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/// mailto:info@state-machine.com
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///***************************************************************************
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/// @endcond
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#ifndef qf_port_h
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#define qf_port_h
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// uC/OS-II event queue and thread types
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#define QF_EQUEUE_TYPE OS_EVENT *
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#define QF_THREAD_TYPE uint32_t
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// The maximum number of active objects in the application
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#define QF_MAX_ACTIVE ((OS_LOWEST_PRIO - 1 < 64) ? (OS_LOWEST_PRIO - 1) : 64)
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// uC/OS-II critical section operations (critical section type 3), NOTE1
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#define QF_CRIT_STAT_TYPE OS_CPU_SR
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#define QF_CRIT_ENTRY(stat_) ((stat_) = OS_CPU_SR_Save())
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#define QF_CRIT_EXIT(stat_) OS_CPU_SR_Restore(stat_)
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#include "ucos_ii.h" // uC/OS-II API
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#include "qep_port.h" // QEP port, includes the master uC/OS-II include
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#include "qequeue.h" // used for event deferral
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#include "qpset.h" // this QP port uses the native QP priority set
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#include "qf.h" // QF platform-independent public interface
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// Facilities specific to the uC/OS-II port...
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namespace QP {
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// set uC/OS-II task attributes
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// (e.g., OS_TASK_OPT_SAVE_FP | OS_TASK_OPT_STK_CHK)
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// for OSTaskCreateExt() **before** calling QACTIVE_START().
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//
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void QF_setUCosTaskAttr(QActive *act, uint32_t attr);
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} // namespace QP
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//****************************************************************************
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// interface used only inside QF, but not in applications
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//
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#ifdef QP_IMPL
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// uC/OS-II-specific scheduler locking, see NOTE2
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#define QF_SCHED_STAT_
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#define QF_SCHED_LOCK_(dummy) do { \
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if (OSIntNesting == static_cast<INT8U>(0)) { \
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OSSchedLock(); \
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} \
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} while (false)
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#define QF_SCHED_UNLOCK_() do { \
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if (OSIntNesting == static_cast<INT8U>(0)) { \
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OSSchedUnlock(); \
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} \
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} while (false)
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// uC/OS-II event pool operations...
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#define QF_EPOOL_TYPE_ OS_MEM*
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#define QF_EPOOL_INIT_(pool_, poolSto_, poolSize_, evtSize_) do { \
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INT8U err; \
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(pool_) = OSMemCreate((poolSto_), (INT32U)((poolSize_)/(evtSize_)), \
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(INT32U)(evtSize_), &err); \
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Q_ASSERT_ID(105, err == OS_ERR_NONE); \
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} while (false)
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#define QF_EPOOL_EVENT_SIZE_(pool_) ((pool_)->OSMemBlkSize)
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#define QF_EPOOL_GET_(pool_, e_, m_) do { \
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QF_CRIT_STAT_ \
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QF_CRIT_ENTRY_(); \
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if ((pool_)->OSMemNFree > (m_)) { \
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INT8U err; \
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(e_) = (QEvt *)OSMemGet((pool_), &err); \
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Q_ASSERT_ID(205, err == OS_ERR_NONE); \
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} \
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else { \
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(e_) = static_cast<QEvt *>(0); \
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} \
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QF_CRIT_EXIT_(); \
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} while (false)
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#define QF_EPOOL_PUT_(pool_, e_) \
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Q_ALLEGE_ID(305, OSMemPut((pool_), (e_)) == OS_ERR_NONE)
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#endif // ifdef QP_IMPL
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#endif // qf_port_h
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//****************************************************************************
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// NOTE1:
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// The uC/OS-II critical section must be able to nest.
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//
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// NOTE2:
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// uC/OS-II provides only global scheduler locking for all thread priorities
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// by means of OSSchedLock() and OSSchedUnlock(). Therefore, locking the
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// scheduler only up to the specified lock priority is not supported.
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//
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